Cubikook Manual - Knife Sharpener Review

Updated
Tested Methodology v1.0
Cubikook Knife Sharpener Review
Sharpener type: manual
Sharpening Stage: 1

Verdict

8.3
Overall Score
  • Performance (50%)
    7.6/10
  • Ease of Use (35%)
    9.2/10
  • Design (15%)
    8.4/10

The Cubikook Chef Sharpener is a much better device than its price suggests. It’s safe, handy, effortless to use, dependable, and offers a sharpness level that, while not exceptional, is sufficient for most kitchen tasks.

Things We Like

  • Excellent stability 
  • Affordable price
  • Consistent sharpness
  • Solid and sturdy construction

Things We Don’t Like

  • Small ceramic rods
  • Flaky brand label

Last year, we bought a Cubikook Chef Sharpener CS-T01 to test out. Now that it’s undergone over a year’s worth of use, we picked up a new one to compare it to and see how ours held up. 

This model works smoothly and has never caused a problem, but at the same time, there was never anything exceptional about it. So imagine our surprise when we put a bunch of other sharpeners to the test, and then immediately realized how much we’ve been taking this one for granted.

Performance

How We Tested
7.6
Performance Scores
  • Sharpening Time (35%)
    6.5/10
  • Maximum Sharpness Achieved (20%)
    8.0/10
  • Material Retention (25%)
    8.0/10
  • Edge Smoothness (20%)
    8.7/10

The Cubikook isn’t the fastest of sharpeners, nor does it produce the sharpest edge. But after comparing its results to others’, we’d argue that the extra few minutes of sharpening is a fair compromise for the quality it offers.

6.5

Sharpening Time

Play video
Cubikook Chef Sharpener Sharpening Time
  • Sharpening Time: 2 minutes 13 seconds
  • Cutting Feel: Swift and smooth

The Cubikook does an ok job of bringing life to a dull blade.

In our sharpness test, it took 15 seconds on each slot to transform a useless dull knife into a reasonable tool capable of cutting through an apple in one go or a fresh lemon with 3 - 4 draws. 

To cut through a lemon with one swift draw, it took the sharpener an average of 133 seconds total. This is within the acceptable range for a pull-through sharpener, though we wouldn’t say it’s impressive.

8.0

Maximum Sharpness Achieved

Play video
Cubikook Maximum Sharpness
Play video
Cubikook Maximum Sharpness Result
  • Sharpening Time: 1 minute
  • Sharpness Level: 7- (Ripe tomato, 2 swipes)

After 6 minutes of sharpening, the test knife could cut through a ripe tomato. It took two swipes and the tomato was slightly squished. This performance is mediocre compared to the Smith’s or Kitchellence. However, most casual home cooks will find the Cubikook more than sufficient.

8.0

Material Retention

Cubikook Material Retention
Cubikook Material Retention
  • Sharpening Time: 1 minute

While effective, the Cubikook doesn’t remove a lot of material. This is one of the advantages multi-stage devices have over single-stage ones such as the Sunrise Pro. The first stage (diamond-impregnated rods) helps straighten the edge before you put it through the tungsten ‘peeler’ stage. Finally, the third, ceramic stage acts as a final honing step to leave your blade as smooth as possible. 

The benefit of single-stage devices is that they sharpen your knife quicker. That’s possible because they simply pull off more metal at a time. That means your knife will get eaten up faster, so you have the choice between quick sharpening or long overall blade life.

8.7

Edge Smoothness

Cubikook Edge Smoothness

The Cubikook creates a smooth edge. It came out looking much better than many single-stage and even multi-stage versions like Smith’s 50264 or Chef’s Choice ProntoPro. In fact, we scored this device better on the edge smoothness test than any other we’ve tested to date. It creates the straightest line with barely any visible chips, while the grooves on the primary edge were also even and narrow.

This fine edge is the result of good design choices. The device’s working section is placed low and fastened tightly to the base, which helps distribute pressure evenly against the delicate edge regardless of how much force is applied. The ceramic rods in the final stage help remove any remaining burrs or metal particles, thus minimizing edge deformities.

8.4
design Scores
  • Build Quality (74%)
    8.8/10
  • Grip (25%)
    7.5/10

The Cubikook is heavily function-oriented — it skips the bells and whistles and focuses on keeping the device sturdy, stable, and effective to use.

In the Box

Cubikook In the Box
  • The Cubikook sharpener
  • Thank you card 

The Cubikook comes in a nice box. Instead of an instruction booklet, the user guide is printed right on the box. We thought that was done to save paper, but then we also found a greeting card that doesn’t really say anything.

Weight & Dimensions

Cubikook Knife Sharpener Dimensions
  • Length:
    8.4" (21.3 cm)
  • Width:
    1.9" (4.8 cm)
  • Height
    :
    2.3" (5.8 cm)
  • Weight:
    7.9 lbs (3.6 kg)

8.8

Build Quality

Cubikook Knife Sharpener Build Quality

The Cubikook is easily the sturdiest handheld sharpener that we’ve tested. Its working section is secured to the base using metal screws. The device is solid, and because its parts fit together tightly, it feels like it’s one piece throughout. 

The only issue is with the label. It is a strip of silicone that’s attached to the grip with glue and is starting to fall off our one-year-old device. This, however, doesn’t affect the sharpener’s functionality.

The finish is nothing to write home about, but it does ensure easy cleanup.

7.5

Grip

Cubikook Knife Sharpener Grip
  • Material:
    ABS

This Cubikook’s grip is very simple. It’s a thin, flat handle with the brand label on top. 

It doesn’t have an ergonomic design or a velvety cover, but we’ve never had a problem maintaining a firm grip. However, we do think it could be even better if it were bulkier. 

The grip is connected to the base, forming a closed loop, which further improves the device’s stability. As a small plus, you can hang it on a rack or hook for quick access.

Working Section

Cubikook Knife Sharpener Working Section
  • Levels of Sharpening:
    Coarse, Medium, Fine
  • Abrasive:
    Diamond rods, tungsten carbide blades, ceramic rods
  • Mechanism:
    Pull through
  • Sharpening Angle:
    20 degrees

The device has one slot with diamond rods that shape and straighten the edge, one with tungsten bars that remove burrs and small amounts of metal, and one with ceramic rods for honing. 

The working section is secured to the base with screws and is technically detachable. However, you’d have to remove the silicone feet before you can take it apart. Also, the manufacturer doesn’t seem to sell spare parts online. We find it a pity that the whole device has to be discarded once the abrasives wear down, even though the other parts are still in perfect condition.

Base

Cubikook Knife Sharpener Base
Cubikook Sharpener Base
  • Material:
    ABS plastic
  • Feet Type:
    silicone base

The Cubikook has a flat base with two silicone pads underneath to keep it in place. It isn’t particularly large, but because the device is modest in height and tapers at the top, the base area is more than enough to keep it from wobbling. We love that the design is simple but still very effective in ensuring stability.

Ease of Use

How We Rated
9.2
usability Scores
  • Slot Arrangement (10%)
    10/10
  • Insertion (20%)
    9.5/10
  • Pulling Through (10%)
    9.0/10
  • Stability on a Clean Surface (40%)
    9.5/10
  • Stability on a Wet and Dirty Surface (20%)
    8.0/10

The Cubikook has a straightforward design with a flat base, a sturdy working section, and an intuitive slot arrangement. Everything supports a safe and easy sharpening experience. It’s the best handheld sharpener for those with weak or shaky hands.

10

Slot Arrangement

Cubikook Knife Sharpener Slot Arrangement

With one single working angle and the coarseness printed at each slot, the Cubikook Chef’ Sharpener is intuitive. Swipe through the slots until the knife is sharp — you really can’t go wrong with it. The slot labels are only embossed on one side, suggesting a right-handed orientation, but it functions just as well for southpaws. You just need to remember which slot is which.

9.5

Insertion

Cubikook Knife Sharpener Insertion

The Cubikook has some of the widest slot openings out of all the devices we tested. Granted, you can still cut into the walls if you have trembling hands or try to insert the blade too fast, but overall, insertion is pretty effortless and doesn’t require much concentration.

9.0

Pulling Through

Play video
Cubikook Pulling Through
Cubikook Knife Sharpener Pulling Through

The Cubikook’s stability and sturdiness make pulling a blade through its slots a breeze. The smaller sharpening rods mean their cradle is rather light, but not loose — at least not when the device is still new.

Within a few months of heavy use, one of the two ceramic rods unfastened itself and started spinning whenever we pulled a blade through. This happens on both of the devices we have, so we’re not quite sure if it’s a feature or a fault in design.

We like that the sharpening slots are thin and the U-shape cutouts that frame them sit far below where the rods meet, thus staying out of the blade’s path. We can pull a whole knife through quickly, place reasonable pressure on it, even with the tip downward, and still never cut into the plastic.

9.5

Stability on a Clean Surface

Cubikook Stability on a Clean Surface

The Cubikook has a low center of gravity, with its working section connected directly to its flat base. The two silicone pads underneath further aid in keeping it in place. It didn’t wobble or slip even when we deliberately applied more pressure than necessary.

8.0

Stability on a Wet and Dirty Surface

Cubikook Stability on a Wet and Dirty Surface

The Cubikook stands shoulder to shoulder with the Chef’s Choice ProntoPro in this test and beats the others by leaps and bounds. It slipped but never came close to rolling or flipping. Again, a wide base and a working section placed low to its center of gravity are the recipe for success.